Damage caused to equipment during installation or by fire or lightning, wilful damage, inappropriate electrical loading and misuse are examples of things that are not covered by the above guarantee.
An example of inappropriate use is: Proximity cards are designed to be carried in a cardholder, wallet or purse or in some other way that will not expose the cards to continuous flexing. Mechanical failure of the wires will result. Proximity keyfobs should be used in these cases – for example for storing in trouser pockets.
An example of a maximum number of operations is the head of a CARDLOCK magnetic stripe reader which is rated for 1,000,000 swipes. This would be the limit of the guarantee period.